The equivalent series resistance (ESR) of a solid tantalum capacitor is frequency dependent. The curves of Figure 6 are typical of the capacitor values noted, with measurements being made by contacting lead wires 1/4 inch from the ends of the capacitor cases. Since ESR decreases with frequency, AC performance at higher frequencies is considerably better than would be predicted from the 120 Hz ratings.
A quartz crystal resonator depends on the piezo-electric effect to work. This effect converts a mechanical stress in a crystal to a voltage and vice versa. In this way the piezo-electric effect converts the electrical impulses to mechanical stress which is subject to the very high Q mechanical resonances of the crystal, and this is in turn linked back into the electrical circuit.
The quartz crystal can vibrate in several different ways, and this means that it has several resonances, all on different frequencies. Fortunately the way in which the quartz crystal blank is cut from the original crystal itself can very significantly reduce this. In fact the angle of the faces relative to the original crystal axes determines many of its properties from the way it vibrates to its activity, Q, and its temperature co-efficient. There are three main ways in which a crystal can vibrate: longitudinal mode, low frequency face shear mode, and high frequency shear. A cut known as the AT cut used for most crystals used in traditional radio and electronics circuits uses the high frequency shear mode.
Vibrational modes of a quartz crystal resonator
(For the sake of clarity, the movements have been greatly exaggerated)
A transmission line arrester also known as a transmission line surge arrester is any arrester that is applied out on the transmission line to reduce the possibility.
The resulting wave when an electrical variation in a circuit such as a transmission line takes the form of translation of energy along a conductor, such energy being always equally divided between current and potential forms. The traveling waves propagate at close to the speed of light and can generate surges at 2-4 times the initial impulse under certain circumstances.
Impulse protective levels of an arrester:
a) Fast front protective level: The highest of either the steep current residual voltage or the front-of-wave impulse spark over voltage.
b) Standard lightning impulse protective level: The highest of the residual voltage at nominal current or 1,2/50 lighting impulse spark over voltage.
c) Switching impulse protective level: The highest of either the maximum residual voltage for the specified switching current or the specified switching impulse spark over voltage.
Application range:
Peace project(police),telecom "global E-eye"(telecom),road monitoring(police), Community Monitoring(building management), monitoring of environment(environment protection),expressway monitoring, etc.
System specification:
The lightning protection of monitoring system of CCTV is relatively complicated firstly we should understand the main reason why the monitoring system was damaged by the lightning and the possible lightning invaded route, specially, the outdoor monotoring equipment suffer from serious damage of lightning. only analysis on basis of the reason of damage, research and discussion on the laying, shield and earthing mode of signal and power line, the lightning protection device of monitoring system device can be selected and used accurately.
The TV monitoring systemis consisting of three parts as below:
1,The former part: composed of monochrome (colour television) vidicon, len, holder, hood , bracket, etc.
2, transmission part:coaxial-cable,wire,Multi-core wire,fibre,which transmiss video,audio or control signal by way of overhead in air,burial under ground or wall following laying.
3, computer roomterminal part: composed of matrix, monitoring device, hard disk video recorder,etc.
MLCC consists of a conducting material and electrodes. To manufacture a chip-type SMT and achieve miniaturization, high density and high efficiency, ceramic condensers are used.
WTC’s MLCC is made by NPO, X7R and Y5V dielectric material and which provides product with high electrical precision, stability and reliability.
Storage and Operating Condition
(1) To store products at 5℃ to 40℃ ambient temperature and 20% to 70%. related humidity conditions.
(2) The product is recommended to be used within one year after shipment. Check solderability in case of shelf life extension is needed.
Cautions:
a. Don’t store products in a corrosive environment such as sulfide, chloride gas, or acid. It may cause oxidization of electrode, which easily be resulted in poor soldering.
b. To store products on the shelf and avoid exposure to moisture.
c. Don’t expose products to excessive shock, vibration, direct sunlight and so on.
The reliability of a potentiometer depends on its ability to continue performing its intended function. Since the primary function is to provide a continuous and proportional voltage output, the primary reliability considerations are continuity and proportional voltage output. A failure in continuity is always catastrophic, as the device is no longer acting as a potentiometer.
The primary constituents of continuity are:
Wiper contact to conductive surface
Continuous conductive surface
Wiper (output) and excitation terminal continuity
Diode have many types: ordinary rectifier diodes, ultra-fast rectifier diodes, transient voltage suppression diodes, switching diodes, high voltage diodes, diode bridge rectifier, SMT surface mount fast recovery diodes, surface-mount schottky diodes SMD, fast recovery rectifier diodes, schottky diodes, bi-directional trigger diodes, zener diodes,damping diodes, ordinary surface mount diodes SMT, SMT surface mount ultra-fast diodes, TO-220 packaged diodes, power snubber diode, etc.
Below are Kingtronics bridge rectifier full list, do you buy any of these? Kindly send your inquiry to info@kingtronics.com
Welcome to check our price!
Kingtronics team
No. | Type | Package | Packing |
ABS | ABS2-ABS6 | ABS | Tape & Reel |
ABS8 | ABS | Tape & Reel | |
ABS10 | ABS | Tape & Reel | |
MBS | MB1S-MB6S | MBS | Tape & Reel |
MB8S | MBS | Tape & Reel | |
MB10S | MBS | Tape & Reel | |
MBM | MB1M-MB6M | MBM | Tube |
MB8M | MBM | Tube | |
MB10M | MBM | Tube | |
DB | DB101-DB105 | DB | Tube |
DB106-DB107 | DB | Tube | |
DB151-DB155 | DB | Tube | |
DB156-DB157 | DB | Tube | |
DBS | DB101S-DB105S | DBS | Tube |
DB106S-DB107S | DBS | Tube | |
DB151S-DB155S | DBS | Tube | |
DB156S-DB157S | DBS | Tube | |
KBP | KBP2005-KBP06 | KBP | Bulk |
KBP08-KBP210 | KBP | Bulk | |
KBP3005-KBP06 | KBP | Bulk | |
KBP308-KBP310 | KBP | Bulk | |
GBP | GBP2005-GBP210 | GBP | Bulk |
GBP3005-GBP310 | GBP | Bulk | |
KBL | KBL401-KBL406(RS401L-RS406L) | KBL | Bulk |
KBL08-KBL410 | KBL | Bulk | |
KBL601-KBL608(RS601L-RS606L) | KBL | Bulk | |
KBL610 | KBL | Bulk | |
KBU | KBU4005-KBU406(RS4) | KBU | Bulk |
KBU408-KBU410(RS4) | KBU | Bulk | |
KBU6005-KBU606(RS6) | KBU | Bulk | |
KBU608-KBU610(RS6) | KBU | Bulk | |
KBU8005-KBU806(RS8) | KBU | Bulk | |
KBU808-KBU810(RS8) | KBU | Bulk | |
KBU10005-KBU1006 | KBU | Bulk | |
KBU1008-KBU1010 | KBU | Bulk | |
KBU15005-KBU1506 | KBU | Bulk | |
KBU1508-KBU1510 | KBU | Bulk | |
KBU25005-KBU2506 | KBU | Bulk | |
KBU25008-KBU2510 | KBU | Bulk | |
KBU35005-KBU3506 | KBU | Bulk | |
KBU3508-KBU3510 | KBU | Bulk | |
GBU | GBU4005-GBU406 | GBU | Bulk |
GBU408-GBU410 | GBU | Bulk | |
GBU6005-GBU606 | GBU | Bulk | |
GBU608-GBU610 | GBU | Bulk | |
GBU8005-GBU806 | GBU | Bulk | |
GBU808-GBU810 | GBU | Bulk | |
GBU10005-GBU1006 | GBU | Bulk | |
GBU1008-GBU1010 | GBU | Bulk | |
GBU15005-GBU1510 | GBU | Bulk | |
GBU20005-GBU2010 | GBU | Bulk | |
GBU25005-GBU2510 | GBU | Bulk | |
KBJ4(3S) | KBJ4005-KBJ406 | KBJ4(3S) | Bulk |
KBJ408-KBJ410 | KBJ4(3S) | Bulk | |
KBJ6005-KBJ606 | KBJ4(3S) | Bulk | |
KBJ608-KBJ610 | KBJ4(3S) | Bulk | |
KBJ8005-KBJ806 | KBJ4(3S) | Bulk | |
KBJ808-KBJ810 | KBJ4(3S) | Bulk | |
KBJ10005-KBJ1006 | KBJ4(3S) | Bulk | |
KBJ1008-KBJ1010 | KBJ4(3S) | Bulk | |
KBJ15005-KBJ1506 | KBJ4(3S) | Bulk | |
KBJ1508-KBJ1510 | KBJ4(3S) | Bulk | |
KBJ6(5S) | GBJ6005-GBJ606 | KBJ6(5S) | Bulk |
GBJ608-GBJ610 | KBJ6(5S) | Bulk | |
GBJ8005-GBJ806 | KBJ6(5S) | Bulk | |
GBJ808-GBJ810 | KBJ6(5S) | Bulk | |
GBJ10005-GBJ1006 | KBJ6(5S) | Bulk | |
GBJ1008-GBJ1010 | KBJ6(5S) | Bulk | |
GBJ15005-GBJ1506 | KBJ6(5S) | Bulk | |
GBJ1508-GBJ1510 | KBJ6(5S) | Bulk | |
GBJ20005-GBJ2006 | KBJ6(5S) | Bulk | |
GBJ2008-GBJ2010 | KBJ6(5S) | Bulk | |
GBJ25005-GBJ2506 | KBJ6(5S) | Bulk | |
GBJ2508-GBJ2510 | KBJ6(5S) | Bulk | |
GBJ35005-GBJ3506 | KBJ6(5S) | Bulk | |
GBJ3508-GBJ3510 | KBJ6(5S) | Bulk | |
KBPC1 | KBPC1005-KBPC106 | KBPC1 | Bulk |
KBPC108-KBPC110 | KBPC1 | Bulk | |
KBPC6 | KBPC6005-KBPC6006 | KBPC6 | Bulk |
KBPC608-KBPC610 | KBPC6 | Bulk | |
KBPC6005-KBPC6006 | KBPC6 | Bulk | |
KBPC608-KBPC610 | KBPC6 | Bulk | |
KBPC8 | KBPC8005-KBPC806 | KBPC8 | Bulk |
KBPC808-KBPC810 | KBPC8 | Bulk | |
KBPC8005L-KBPC806L | KBPC8 | Bulk | |
KBPC808L-KBPC810L | KBPC8 | Bulk | |
KBPC10005-KBPC1006 | KBPC8 | Bulk | |
KBPC1008-KBPC1010 | KBPC8 | Bulk | |
KBPC10005L-KBPC1006L | KBPC8 | Bulk | |
KBPC1008L-KBPC1010L | KBPC8 | Bulk | |
KBPC/ KBPC-W | KBPC15005-KBPC1506 | KBPC/ KBPC-W | Bulk |
KBPC1508-KBPC1510 | KBPC/ KBPC-W | Bulk | |
KBPC25005-KBPC2506 | KBPC/ KBPC-W | Bulk | |
KBPC2508-KBPC2510 | KBPC/ KBPC-W | Bulk | |
KBPC35005-KBPC3506 | KBPC/ KBPC-W | Bulk | |
KBPC3508-KBPC3510 | KBPC/ KBPC-W | Bulk | |
KBPC50005-KBPC5006 | KBPC/ KBPC-W | Bulk | |
KBPC5008-KBPC5010 | KBPC/ KBPC-W | Bulk | |
BR/BR-W | BR15005-BR1506 | BR/BR-W | Bulk |
BR15008-BR1510 | BR/BR-W | Bulk | |
BR25005-BR2506 | BR/BR-W | Bulk | |
BR25008-BR2510 | BR/BR-W | Bulk | |
BR35005-BR3506 | BR/BR-W | Bulk | |
BR35008-BR3510 | BR/BR-W | Bulk | |
BR50005-BR5006 | BR/BR-W | Bulk | |
BR50008-BR5010 | BR/BR-W | Bulk | |
BR-L | BR15005L-BR1506L | BR-L | Bulk |
BR15008L-BR1510L | BR-L | Bulk | |
BR25005L-BR2506L | BR-L | Bulk | |
BR25008L-BR2510L | BR-L | Bulk | |
BR35005L-BR3506L | BR-L | Bulk | |
BR35008L-BR3510L | BR-L | Bulk | |
BR50005L-BR5006L | BR-L | Bulk | |
BR50008L-BR5010L | BR-L | Bulk | |
GBPC | GBPC15005-GBPC1506 | GBPC | Bulk |
GBPC15008-GBPC1510 | GBPC | Bulk | |
GBPC25005-GBPC2506 | GBPC | Bulk | |
GBPC25008-GBPC2510 | GBPC | Bulk | |
GBPC35005-GBPC3506 | GBPC | Bulk | |
GBPC35008-GBPC3510 | GBPC | Bulk | |
GBPC50005-GBPC5006 | GBPC | Bulk | |
GBPC50008-GBPC5010 | GBPC | Bulk | |
GBPCW | GBPC15005-GBPC1510W | GBPCW | Bulk |
GBPC25005-GBPC2510W | GBPCW | Bulk | |
GBPC35005-GBPC3510W | GBPCW | Bulk | |
GBPC50005-GBPC5010W | GBPCW | Bulk | |
SKBPC | SKBPC2501-SKBPC2510 | SKBPC | Bulk |
SKBPC2512-SKBPC2516 | SKBPC | Bulk | |
SKBPC3501-SKBPC3510 | SKBPC | Bulk | |
SKBPC3512-SKBPC3516 | SKBPC | Bulk | |
SKBPC5001-SKBPC5010 | SKBPC | Bulk | |
SKBPC5012-SKBPC5016 | SKBPC | Bulk |
The principal "active" element of the Surge Arrester is a metal oxide varistor characterized by high non-linearity. At a working voltage mainly a capacity current flows smaller than 1 mA. Any voltage increase causes a large increase of current flowing through the varistor, leading in turn to immediate limitation of further voltage increase on arrester terminals. When the over voltage disappears, the arrester immediately returns to its basic state.
Surge Arresters are equipped with a disconnecting device that disconnects the arrester from the network if it becomes damaged as the result of over voltage of too high energy or inadmissible voltage increase in the system. If such a situation occurs then the bottom terminal of the disconnecting device is "rejected" by the spring inside. This terminal remains suspended on an insulation "leash".
Kingtronics sell 2-Electrode arresters and 3-Electrode arresters. Following are 2-Electrode arresters and 3-Electrode arresters’s pictures.
Diodes can switch analog signals. A reverse biased diode appears to be an open circuit. A forward biased diode is a low resistance conductor. The only problem is isolating the AC signal being switched from the DC control signal. The circuit in Figure below is a parallel resonant network: resonant tuning inductor paralleled by one (or more) of the switched resonator capacitors. This parallel LC resonant circuit could be a preselector filter for a radio receiver. It could be the frequency determining network of an oscillator (not shown). The digital control lines may be driven by a microprocessor interface.
Kingtronics www.kingtronics.com provide Fast Switching Diode LL4148 Minimelf SOD80 .The features of Fast Switching Diode LL4148 Minimelf SOD80 are below:
Lightning Arresters are protective devices for limiting surge voltages due to lightning strikes or equipment faults or other events, to prevent damage to equipment and disruption of service. Also called surge arresters.
Lightning Arresters are installed on many different pieces of equipment such as power poles and towers, power transformers, circuit breakers, bus structures, and steel superstructures in substations.
Lightning arrester on distribution pole transformer:
Tel: (86) 769 8118 8110
Tel: (852) 8106 7033
Fax: (852) 8106 7099
E-mail: info@kingtronics.com
Skype: kingtronics.sales
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Kingtronics International Company was established in 1995 located in Dongguan City of China to handle all sales & marketing for factories located in Chengdu, Sichuan and Zhaoqing, Guangdong, China. In 1990, we established the first factory to produce trimming potentiometer and in 1999 we built up new factory in Zhao Qing, Guangdong. Now with around 850 workers, Kingtronics produce trimming potentiometers, dipped tantalum capacitors, multilayer ceramic capacitors, and diode & bridge rectifier. We sell good quality under our brand Kingtronics, and Kt, King, Kingtronics are our three trademarks. All our products are RoHS compliant, and our bridge rectifier have UL approval. Please visit our Products page, you could please download all our PDF datasheet and find cross reference for our Trimming Potentiometer and capacitors.
Tantalum and Ceramic Capacitors Cross Reference ↓ Download
Diodes & Rectifiers List(PDF: 97KB) ↓ Download
Trimming Potentiometer Cross Reference ↓Download